CPToyz Da Vinci Ariel Screw Model Construction Set Artist, scientist, inventor and archetypal Renaissance man, Leonardo da Vinci, offered the world glimpses of the distant future through his awe-inspiring designs DaVinci's limitless curiosity was the ipetus for DaVinci's pursuit of creativity and genius This ready to assemble kit comes complete with detailed assembly instructions This interpretation of the original Leonardo da Vinci design was a precursor of the modern day helicopter The device was designed to compress air in order to obtain flight